Scientists are working on testing for a vaccine developed in 1921 to see if it can help those with COVID-19. The Bacillus Calmette–Guérin vaccine will be tested on around 1,000 people who will take part in the trial at the University of Exeter. “There’s quite a good theory BCG might make you less likely to get unwell when you get COVID,” Sam Hilton said to BBC. The goal remains to be a vaccine that specifically targets the coronavirus.

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